package xx.ring.domain;

import java.io.File;
import java.nio.file.Files;
import java.nio.file.Paths;

public interface Jiek {
    public int aa=2;


    public static void main(String[] args) {
        File file = new File("aa");
        file.exists();
        file.delete();
        file.mkdir();
        file.isFile();
        file.isDirectory();
        Files.exists(Paths.get(file.getPath()));
    }

}
